Re: UPDATE LED Life Test at 2 Months

From: Watson A.Name \ (NOSPAM_at_dslextreme.com)
Date: 07/07/04 

Date: Wed, 07 Jul 2004 07:25:35 -0700

Rune Christensen wrote:

> Hello
>
> I have found this link on eBay
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=2020&item=5106449490

> He claims that the white leds in the flashlight can last 100,000 hrs. That
> means 24/7 in over 10 years.

What's claimed and what's actually going to happen are two different things.

There've been statements here that some LEDs start to lose a lot of
birghtness at less than 10k hours. That's not much different than a
fluorescent light.

> You can get the flashlight for 15$ with free shipping around the world.

> Cheers
> Rune

[snip]

>>I've had problems with several white LEDs from Fry's Electronics failing
>>too. They dimmed after a few months of use then they started blinking.
>>It sucks because some are inside a night hiking flashlight to keep it
>>glowing while switched off. It's hand crafted inside a tough acrylic
>>tube like a ship in a bottle. The LEDs can't be removed. I didn't
>>think I'd need to make LEDs replacable.

>>I'm going back to green LEDs for the next flashlight.

Relevant Pages

  • Re: LEDs and Ebay questions
    ... The LEDs are the same specs as ... > on ebay or on their site. ... Others here have noted that the brightness drops rapidly if these LEDs are ... The heat from soldering could be a problem too so use a heat sink ...
    (sci.electronics.basics)
  • Re: UPDATE LED Life Test at 2 Months
    ... > I have found this link on eBay ... >>It sucks because some are inside a night hiking flashlight to keep it ... >>glowing while switched off. ... The LEDs can't be removed. ...
    (sci.electronics.components)
  • LEDs and Ebay questions
    ... A little while ago someone had said that they had bought 50 LED's from ebay ... The price was really cheap 8 dollars plus ... >$5 shipping, 11000mcd. ... The LEDs are the same specs as ...
    (sci.electronics.basics)
  • Re: Wall of RAM
    ... > Ebay is a dangerous place, I can understand how women go to the store ... > $300 later and I have 50,000 LEDs in the mail ... I'd use flip-flops or real RAM. ... > the Apple 1 kit that I bought on ebay. ...
    (sci.electronics.basics)
  • Re: Wall of RAM
    ... > Ebay is a dangerous place, I can understand how women go to the store ... > $300 later and I have 50,000 LEDs in the mail ... but what about actually making real ram? ... > The goal of the project would be a wall of cards, ...
    (sci.electronics.basics)